| 高落差、长跨径桥梁挠度检测实验研究与探讨 |
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| 引用本文： | 曹建秋,高雷雨,宋军,张奔牛,YAN Guo. 高落差、长跨径桥梁挠度检测实验研究与探讨[J]. 科学技术与工程, 2009, 9(7) |
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| 作者姓名： | 曹建秋 高雷雨 宋军 张奔牛 YAN Guo |
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| 作者单位： | 重庆交通大学,信息科学与工程学院,重庆,400074 |
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| 基金项目： | 国家自然科学基金，重庆市科委科技攻关计划，重庆市教委科学技术研究项目 |
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| 摘 要： | 分析了桥梁挠度检测技术,特别分析了水准仪测量技术的现状,并讨论了水准仪测量方法和存在的问题.通过研究发现当水准仪应用于高落差、长跨径桥梁挠度测量时,存在测量效率低,强度大和易产生较大误差等问题.为了进一步分析影响测量效率的因素和误差产生的原因,设计了精密水准仪应用在重庆安稳大桥测量桥梁挠度的实验,并将测量数据与激光投射式桥梁挠度实时监测系统的测量结果进行对比,分析了水准仪检测法在测量过程中产生测量误差的原因.最后,针对测量误差问题进行讨论并提出改进措施.
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| 关 键 词： | 高落差 长跨径 桥梁 挠度 水准仪 测量误差 |
Exploration and Experimental Study on Deflection Detection of High Fall,Large-Span Bridges |
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| CAO Jian-qiu,GAO Lei-yu,SONG Jun,ZHANG Ben-niu,YAN Guo. Exploration and Experimental Study on Deflection Detection of High Fall,Large-Span Bridges[J]. Science Technology and Engineering, 2009, 9(7) |
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| Authors: | CAO Jian-qiu GAO Lei-yu SONG Jun ZHANG Ben-niu YAN Guo |
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| Affiliation: | School of Information Science & Engineering;Chongqing Jiaotong University;Chongqing 400074;P.R.China |
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| Abstract: | For exploration on deflection measurement of high fall and large-span bridges,the existing detection technologies for bridges' deflection,especially the water level instrument are analyzed dedicatedly.The advantages and disadvantages of the instruments,such as efficiency,complexity and precision,are discussed accordingly.In order to discover the application of water level on high-fall and long-span bridges,experiments of water level on An'wen are specially designed and compared with that of laser projection... |
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| Keywords: | high fall large-span bridge deflection levelling measuring error |
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